Clutch.



J. SCHNEIDER.'

CLUTCH..

' APPLICATION FILED MAR.18. 1909. 93 1,500. Patented Aug. 17, 1909.

- ATTORNEYS PATENT onnron .TOEN SCHNEIDER, OF ANN ARBOR, MICHIGAN.

CLUTCH.

Specification of Letters Patent. v

Patented Aug.' 1v, reos'.

Application filed umh 1s, 1909. serial No. 484,085.'

To all whom'it may concern'. l

Be it known 4that I, JOHN SCHNEIDER, a citizen of the UnitedStates, and a resident of Ann Arbor, inthe county of WVashtenaw and State'of Michigan, have invented a new" and Improved Clutch, of which the followin is a full, clear, and exact description.`

' y invention relates to clutches, and it i has for its'object to provide one which will permit of the ready engagement and disengagement' ofthedrive and driven shafts, with automatlc means which will more securely connect the two shafts should there be any-slip from. the wearing of the parts after the clutch has 'been' thrown into operative position.

Still other objects ofthe invention will appear in the following complete description.

Inthis specification I will describe the preferred form of my invention, the scope of the invention being defined in the appendedclaims. l

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of refer- -ence lndicatecorrespondlng parts 1n a-ll the views.

Figure 1 is a front elevationof the clutch;

Fig. 2 is a sectional view on the line r2 2 of F1g.. 1; F1 Sis a view similar to that shown in Fig. 1, ut with anumber of the parts in section to show clearly the construction.; and

Fig. 4 is a sectional View on the line 4-4 of Fig. 2. v

By referring to the drawin seen that the shaft '5, which 1s preferably the driving shaft, is journaled Vin bearings. T o this shaft is secured a collar 6', which has ahead 7 inte ral with a sleeve 8 disposed on the said sha t 5, the sleeve 8 having a set screw 9, which passes therethrough andl engages the shaft 5 to hold thecollar 6 so that 1t will `rotate with the Said shaft. On the said shaft 5 is mounted at one side of the colla-r 6 hollow shaft 10, to which is secured a bodv 11, disposed within the collar 6. This body 11 has' friction bands v12 pivoted to it, these friction bands 12 being Idisposed in close 'proximity to the interior of the collar. i A spring 13 connects the free terminals of the friction bands.12 to vpull them yieldingly awayfrom. thefcollarf,` A shaft 16 is disposed through the body 11, there being a shoulder 14 on the shaft 16 at one side of the body 11,' the diameter of the gs it' 'van be,

shaft 16 being less beyond the said shoulder,

and on this portion ofthe shaft 16 is vdisposeda cam 15. At the other end of the. shaft 16 is secured a cam 17. Cam blocks 18 and 19 are secured to the friction bands 12 opposite the cams 15 and 17 respectively.

There is an opening inthe body 11, and inV thisv opening is disposed worm gear 20, which is keyed -to the shaft 16,. the latter, however, being adapted to slide relatively to the worm' ear 20, as the slot in the worm gear -20- in w 'ch the key 21 is disposed, is much longer than vthe said key 21 which is secured `to the shaft 16. The terminals of the shaft 16v project in openi s in the cam blocks 18 andl 19. On the sha '5 is secured worm 22, which engages the worm gear 20.

When the clutch is not in operative position the cam 17 is disposed away from the cam block 19, so that it will not engage therewith when the shaft 16 is rotated. To' the cam 15 is secured an arm 23,' which is connected Aby meansof a link 24 with a colla-r 25, disposed on vthe hollow shaft 10.

Inusing my invention, lwhen the shaft 5 is rotated', the worm 22 will rotate the worm gear Y20. and the shaft 16 and the' cam 17, which is mounted thereon, but inasmuch as the cam 17 is disposed away from the cam block 19, it will. not operate the means for throwingy out the friction bands 12, the cam 1.5 not being secured to the shaft 16. When, however, the cam 15 is thrown into engagelnent'with the canl block 18 and is pressed inwardly by its rotation relatively to the saidcam block 18, it will tend to force the friction band 12 to which the cam block 18 is secured, outwardly, and it will also press against the shoulder 14 thereby moving the shaft 16 so that the cam 17 willmengage the cam block 19 and will force the frictlonY band 12 tov which it is secured into engagement .with the collar 6.

It is my purpose to so mount the parts, that when the' cam 15 is rotated by ymeans of the collar 25,. the linkl 24 and the arm 23, it will force the cam 17 by means of the shaft 16, firmly against the cam block 19', thereby pushing outwardly both of the friction bands 12. whemhowever, the parts-y have becomev worn, there would naturally be some slip. between the friction bands -12 and the col-lar 6, and this is provided for by means of the worm gear 20 and the worm 22, for when the cam 15 has been rotated to an operative position and there is any slipv between the -shaft 5 and the hollow shaft 10, the worm 22 y will rotate the worm gear 20, -therebyrotatadapted to rotate independently of the other,

ing the shaft 16 and forcing the cam 17 more firmly into en agement with the cam block 19 and there 'y forcing the friction bands 12 into rni contact with the collar 6.

Having thus described my invention, I claim as new and desire to secure by Letters Patent: l

1. In a clutch, two shafts, one of which is been moved into what is normally an operative position and there is slip between the two shafts.

2. In a clutch, twoshafts, one of which is adapted to rotate independently ofthe other, a co lar on one of the shafts, friction bands adapted to contact with the collar, a .bodyconnecting-the friction bands with the other shaft, cam blocks supported on the friction bands respectively, cams for engaging the cam surfaces'of the-cam blocks, means for supportin the cams on the body, means for for further actuating the last named means when it has been operated and there is slip' between the two shafts.

3. In a clutch, two shafts, one of which is adapted to rotate independently of the other,

' a collar onI one of thev shafts, a body secured tov the other shaft, friction bands pivoted -to Athe body, the friction bands being disposed in close proximity to the collar," means for.l yieldingly holding the `friction bands away` from the collar, cam blockssupported on the" friction bands respectively, cams forv engagl` ing the cam surfaces of the cam blocks,

means for supportin the cams on the body,y means for rotatin t e cams,'andindep.end ent meansl ada' te for automatically further actuating the", astnamed means when-it has been operated. and there is slip between the two shafts.

4. In a `clutch51-two shaft's,*one'of which is vadapted to'rotateindependently ofthe other one'of the shafts-.having 'gear teeth tlnere011,1 means for ldeta'ehably connecting th`ef twoi. shafts, to prevent the rotation-ofone. in

gear teeth thereon which mesh with thelirst' named gear teeth, and bearings for the third shaft, secured to theother ofthe twoshafts,,

` f thegearingbeing adapted to further' operate?- -=the said means when they have been" moved tol what is normally an` operative position adapted to rotate relativel A -collar mounted on oneof t e'shafts, la bodynamedshaft laterally,

and' there is slip between'the two shafts.

5. In aclutch, two shafts, one of which is adapted to rotateindependently of the other, a collar on one of the shafts, a body secured to tlie other shaft, frictionbands mounted on the body, adapted to engage the collar, a shaft journaled to slide in the body, a cam mounted lon the last-named vshaft nearv one of its ends, means for rotating the cam to shift4 the lastAnamed shaft laterally, acam block secured to one of the friction bands, with which the cam is adapted to engage, a cam mounted near the other end of the last lnamed shaft, a cam block on the other fric- .tion band, with which the last named cam is adapted to engage, and a gearing connecting the shaft with the collar and the hollow shaft.

6. In a clutch, two shafts, one of'which is adapted to rotate independently of the-other, a collarmounted on one of the shafts, a body mounted on the other shaft, friction bands supported'on the body and adaptedto have frictional engagement with the collar, cam blocks mounted on the friction bands respectively, a shaft journaled in the body, a cam mounted on the shaft near one of its ends, adapted to engage one of the cam blocks, means by which the cam is adapted to shift the first named shaft laterally, a cam mounted near the other end of the last named shaft, adapted for engaging the other cam block, and means for rotating the rst named rotating t e cams and independent mea-nsf' f 1 cam. 1

7 In a clutch, twoshafts, one of which is' 4'adapted to 'rotate relatively to the other,- -a collar mounted on one of the shafts, a body mounted on the other shaft, friction bands ysupported on the body and adapted to have vfrictional engagement with the collar, lcam blocks mounted on: the friction bands respectively, a shaft'journaled in the body, a

cam blocks, means -by which the cam is adapted to shift thelast named-shaft laterally, a cam mounted on the lastr named shaftnear its other end, adapted to -engage the other cam block, means for rotating the first named cam, and means for 'rotating the,

last named shaft when one of the said two shafts rotates relatively to the other.

`clam-mounted lon the last'named shaft near fone of its ends, adapted to engage one ofthe 8.- In a clutch, two'shafts, one of which is i mounted on' th'e other shaft, friction bands proximity to the collar, cam blocks mounted 'pendently of the other a. tliird-shaft,f f fw lr on the friction bands respectively, a shaft journ'aled-on` the body, a cam mounted-on'the last named yshaft'near one of its ends, adapted vto engage one of -thefcani blocks, means by which the",fcani is .adapted to shift the last a caml mounted on the 'last-named sha near its other end,

to the'other, a-

lever secured to the first named vcam, a sleeve mounted -to slide on one of the said two shafts, and a link connecting the lever and the collar, A f

9. In a elutoh, two shafts, one of whichis adapted Ato rotate relativelyto the other, a

"collar mounted on one of the shafts, abody mounted on the other shaft, friction bands supported on the body and disposed in -close,

proximity to the collar, cam blocks mounted on the friction bands respectively,"a shaft journaled on the body, a cam mounted on the last named shaft near one of its ends, to engage. one of the caml blocks, means by which the camis adapted to' shift the last named shaft laterally, a cam mounted on the y last named shaft near its other-vend, adapted to engage -the other cam block, alever secured to A-`the first namedcamf a sleeve mounted rto .slide on one of thesaid two shafts, a link connecting the lever and the collarfand gearing connecting the first' of the said two shafts and the last named shaft.

shaftjournaled inthe body, a cam mounted onthelast name'd shaft, a cam block secured to the friction band with which the cam is adapted to engage, means to check the movementvof the cam away from the cam block, means to rotate the cam, and independent means for further rotating the cam when it has been-rotated and there is slip between the two shafts.

In testimony whereof I have signed my Vname to this specification in the presence of two subscribing witnesses.

JOHN SCHNEIDER.

Witnesses:

T. E. WEAVER, GEORGE N. SEARS. 

